Bitcoin's value is maintained as it is exchangeable with various products and day by day various circles, famous people, institutions, countries are recognizing Bitcoin around the world. Moreover, various business organizations are accepting Bitcoin as a payment system for their business. Because Bitcoin is such a global revolution, its value will always remain.
I agree with you that bitcoin will always have value. The real question however is what the value of bitcoin is going to be in the future. Over the years we have seen a lot of volatility in the bitcoin market, 1 BTC has been worth 1 USD and more than 60,000 USD. Right now we are fluctuating somewhere in the middle. I understand that many people want a very high price for bitcoins so they can make a big return. But I don't think we are there yet. In my opinion it would be best if the bitcoin market would settle down and not change prices so quickly. The more stable the price is going to be in the future the more new investors will be attracted. I think the crypto world can still grow a lot when markets are a bit calmer.